| Year |
Employer |
Vendor Name |
Amount |
Source |
| 2018 |
Early Learning |
Dshs Economic Svs Hq |
$84,868,325.08 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Multicare Health System |
$84,674,585.87 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Catholic Community Services Of W |
$84,620,688.12 |
Washington State Checkbook |
| 2022 |
Children, Youth, And Families |
Des Risk Mgmt Self Insur Claim |
$84,071,120.00 |
Washington State Checkbook |
| 2025 |
Transportation |
Vigor Marine Llc |
$83,593,691.70 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Seattle City Of Human Services |
$82,805,236.95 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
University Of Washington |
$82,347,735.38 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Sister's Of Providence - Provide |
$82,207,265.48 |
Washington State Checkbook |
| 2023 |
Transportation |
Granite Construction Company |
$81,514,432.83 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
University Of Washington |
$81,323,494.99 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
Greater Columbia Behavioral Heal |
$81,096,519.30 |
Washington State Checkbook |
| 2018 |
Health Care Authority |
Greater Columbia Behavioral Heal |
$80,781,188.23 |
Washington State Checkbook |
| 2023 |
Children, Youth, And Families |
Des Risk Mgmt Self Insur Claim |
$80,596,736.00 |
Washington State Checkbook |
| 2023 |
Military Department |
Uw-Grant & Contract Accounting |
$80,178,608.77 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
University Of Washington |
$79,770,571.88 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
King Co Finance |
$79,265,361.52 |
Washington State Checkbook |
| 2025 |
Commerce |
Wash St Housing Financecomm |
$78,866,836.77 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Catholic Community Services Of W |
$78,775,709.81 |
Washington State Checkbook |
| 2019 |
Health Care Authority |
Sea-Mar Community Health Center |
$78,720,739.99 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Ambitions Of Washington |
$78,332,575.06 |
Washington State Checkbook |
| 2017 |
Dept Of Social And Health Services |
King Co Finance |
$78,316,033.97 |
Washington State Checkbook |
| 2022 |
Commerce |
Pierce County Housing Programs |
$78,269,302.46 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Harborview Medical Center |
$78,242,471.82 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Regence Blueshield |
$78,030,074.68 |
Washington State Checkbook |
| 2022 |
Health Care Authority |
Regence Blueshield |
$77,575,160.43 |
Washington State Checkbook |
| 2019 |
Transportation |
Hoffman-Pacific A Jv |
$77,485,532.16 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
King County |
$76,662,969.75 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Ambitions Of Washington |
$76,391,418.44 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Seattle Childrens Hospital |
$76,347,161.59 |
Washington State Checkbook |
| 2018 |
Health Care Authority |
Sea Mar Community Health Centers |
$75,971,488.08 |
Washington State Checkbook |
| 2025 |
Corrections |
Doc Correctional Industries |
$75,869,149.38 |
Washington State Checkbook |
| 2023 |
Transportation |
Us Bank Purchasing Card Program |
$75,689,760.63 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Ambitions Of Washington |
$75,679,988.31 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Seattle Childrens Hospital |
$75,644,942.55 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Seattle City Of Human Services |
$75,479,371.81 |
Washington State Checkbook |
| 2021 |
Social And Health Services |
Submittable Holdings Inc |
$74,951,200.00 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Coordinated Care Of Wa Inc |
$74,424,438.85 |
Washington State Checkbook |
| 2024 |
Transportation |
Skanska Usa Civil West Ca Dist |
$74,198,916.91 |
Washington State Checkbook |
| 2020 |
Social And Health Services |
Dcyf |
$74,057,974.07 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
University Of Washington |
$73,805,362.27 |
Washington State Checkbook |
| 2022 |
Ecology |
Seattle City Of Util Solid Wst |
$73,759,704.44 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
Washington Health Benefit Exchng |
$73,564,568.36 |
Washington State Checkbook |
| 2016 |
Transportation |
Us Fab Llc |
$73,472,203.90 |
Washington State Checkbook |
| 2019 |
Health Care Authority |
United Behavioral Health Inc |
$73,416,152.80 |
Washington State Checkbook |
| 2023 |
Commerce |
Submittable Holdings Inc |
$72,971,622.70 |
Washington State Checkbook |
| 2020 |
Transportation |
Kiewit Infrastructure West Co |
$72,957,511.80 |
Washington State Checkbook |
| 2021 |
Transportation |
Seattle City Of Dept Of Transp |
$72,550,586.72 |
Washington State Checkbook |
| 2016 |
Social And Health Services |
King Co Finance |
$72,420,338.47 |
Washington State Checkbook |
| 2016 |
Early Learning |
Dshs Economic Svs Hq |
$72,048,710.59 |
Washington State Checkbook |
| 2019 |
Transportation |
Graham Contracting Ltd |
$71,702,711.73 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
Sea Mar Community Health Centers |
$71,663,263.91 |
Washington State Checkbook |
| 2020 |
Health Care Authority |
Multicare Health System |
$71,620,066.04 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
Multicare Health System |
$71,467,554.55 |
Washington State Checkbook |
| 2021 |
Social And Health Services |
Catholic Community Services Of W |
$71,294,667.44 |
Washington State Checkbook |
| 2024 |
Transportation |
Us Bank Purchasing Card Program |
$71,232,623.98 |
Washington State Checkbook |
| 2018 |
Social And Health Services |
King Co Finance |
$71,131,774.24 |
Washington State Checkbook |
| 2025 |
Transportation |
Us Bank Purchasing Card Program |
$70,932,096.93 |
Washington State Checkbook |
| 2021 |
Health Care Authority |
Regence Blueshield |
$70,896,722.77 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
Seattle Childrens Hospital |
$70,840,310.56 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Regence Blueshield |
$70,648,018.40 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Korean Womens Association |
$70,624,577.10 |
Washington State Checkbook |
| 2023 |
Social And Health Services |
Catholic Community Services Of W |
$70,507,136.76 |
Washington State Checkbook |
| 2017 |
Department Of Transportation |
Central Puget Sound Transit Auth |
$70,228,834.67 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
King Co Finance |
$70,131,206.49 |
Washington State Checkbook |
| 2021 |
Health Care Authority |
Coordinated Care Of Wa Inc |
$69,858,890.38 |
Washington State Checkbook |
| 2025 |
Health Care Authority |
Carelon Behavioral Health Inc |
$69,672,882.24 |
Washington State Checkbook |
| 2016 |
Transportation |
Hamilton Construction Company |
$69,669,052.19 |
Washington State Checkbook |
| 2017 |
Department Of Transportation |
Vigor Fab Llc |
$69,388,212.80 |
Washington State Checkbook |
| 2022 |
Social And Health Services |
Catholic Community Services Of W |
$69,355,519.03 |
Washington State Checkbook |
| 2025 |
Transportation |
Scarsella Bros Inc |
$69,058,090.24 |
Washington State Checkbook |
| 2025 |
Transportation |
King Co Metro Transit |
$68,869,228.00 |
Washington State Checkbook |
| 2025 |
Commerce |
King County |
$68,275,279.27 |
Washington State Checkbook |
| 2020 |
Transportation |
Hoffman-Pacific A Jv |
$68,250,547.58 |
Washington State Checkbook |
| 2024 |
Corrections |
Doc Correctional Industries |
$68,198,518.39 |
Washington State Checkbook |
| 2022 |
Commerce |
Snohomish County Human Services |
$68,057,520.60 |
Washington State Checkbook |
| 2020 |
Transportation |
Flatiron West Inc The Lane Const |
$67,650,860.01 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
Clark Construction Group Llc |
$67,502,453.53 |
Washington State Checkbook |
| 2022 |
Health Care Authority |
Seattle Childrens Hospital |
$67,419,922.47 |
Washington State Checkbook |
| 2017 |
Department Of Transportation |
Flatiron West Inc |
$67,365,037.48 |
Washington State Checkbook |
| 2019 |
Health Care Authority |
Seattle Childrens Hospital |
$66,964,440.25 |
Washington State Checkbook |
| 2022 |
Health Care Authority |
Multicare Health System |
$66,396,623.05 |
Washington State Checkbook |
| 2025 |
Social And Health Services |
First Choice In-Home Care, Inc. |
$66,310,116.45 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Coordinated Care Of Wa Inc |
$65,966,345.90 |
Washington State Checkbook |
| 2023 |
Corrections |
Doc Correctional Industries |
$65,823,001.70 |
Washington State Checkbook |
| 2024 |
Transportation |
Hntb Corp |
$65,818,986.79 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
University Of Washington |
$65,261,171.57 |
Washington State Checkbook |
| 2019 |
Health Care Authority |
Unitedhealthcare Of Washington |
$64,683,999.51 |
Washington State Checkbook |
| 2020 |
Health Care Authority |
Seattle Childrens Hospital |
$64,559,306.83 |
Washington State Checkbook |
| 2021 |
Health Care Authority |
Washington Health Benefit Exchng |
$64,531,545.47 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Carelon Behavioral Health Inc |
$64,047,625.56 |
Washington State Checkbook |
| 2025 |
Health |
Merck Sharp And Dohme Corp |
$63,929,898.96 |
Washington State Checkbook |
| 2023 |
Health Care Authority |
Sister's Of Providence - Provide |
$63,915,263.95 |
Washington State Checkbook |
| 2023 |
Public Schools |
Evergreen School District 114 |
$63,819,021.76 |
Washington State Checkbook |
| 2019 |
Social And Health Services |
Aacres Wa Llc |
$63,648,853.66 |
Washington State Checkbook |
| 2016 |
Health Care Authority |
Swedish Health Services |
$63,648,711.01 |
Washington State Checkbook |
| 2017 |
Wash State Health Care Authority |
Coordinated Care Of Wa Inc |
$63,573,203.90 |
Washington State Checkbook |
| 2024 |
Health Care Authority |
Coordinated Care Of Wa Inc |
$63,147,771.55 |
Washington State Checkbook |
| 2024 |
Military Department |
Agr Industrial Insur Refund |
$63,029,558.83 |
Washington State Checkbook |
| 2024 |
Social And Health Services |
Korean Womens Association |
$62,556,437.64 |
Washington State Checkbook |
| 2024 |
Health |
King Co Public Health |
$62,524,526.28 |
Washington State Checkbook |